Relationship between postural control and respiratory movement during one-leg standing in healthy males.
Yoshihiro Aramaki
PMID 37266362WHAT IT FOUND
Young healthy men on one leg had more body sway and faster breathing than on two legs, while each breath stayed about the same size.
People with more sway also had larger breath-size increases and smaller breathing-rate increases.
Key findings
01Total trajectory length, respiratory rate, minute volume, and METs were significantly higher in one-leg standing than closed-leg standing, while tidal volume was not.
02Change in total trajectory length was positively correlated with change in tidal volume (r=0.67, p<0.01) and negatively correlated with change in respiratory rate (r=-0.55, p<0.05) during one-leg standing.
03No significant correlation was found between change in total trajectory length and change in minute volume during one-leg standing.
STILL TO COME
How it was doneWhat they foundWhat it means for PTs
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What it does not show
The sample was 15 healthy young men, so results may not apply to women, older adults, or patients. The study did not measure thoracic movement, respiratory muscle activity, or breathlessness, so mechanisms are unknown. Findings are associations, not proof that breathing changes cause balance changes. Only closed-leg and one-leg standing were tested, so it does not describe other tasks or clinical populations.
Declared interests
This study was funded by a research grant from Sendai Seiyo Gakuin College to Yoshihiro Aramaki; the authors declared no conflicts of interest.
The easy way to misread this
Do not conclude that breathing training will improve single-leg balance. The study measured associations in healthy young men and did not test an intervention or patients.